What is the next number of the following sequence
2, 5, 9, 1, 5, 10, 3, 8, ... ?

• 2_5=+3
  5_9=+4,9_1=-8,1_5=+4
  5_10=+5,10_3=-7,3_8=+5 similarly
  8_14=+6
  ans=14
• 10 years agoHelpfull: Yes(9) No(0)
• (2,5,9),(1,5,10),(3,8,x)
  2+5+9=16
  1+5+10=16
  3+8+x=16=> x=5
• 10 years agoHelpfull: Yes(4) No(0)
• 2+5+(2)=9
  1+5+(4)=10
  3+8+(6)=17
• 10 years agoHelpfull: Yes(1) No(4)
• (2,5,9)=9-(2+5)=2
  (1,5,10)=10-(1+5)=4
  (3,8,x)=x-11=6(obviously diff is 2,4, then nxt is 6)so
  x-11=6,
  x=17
• 10 years agoHelpfull: Yes(1) No(1)